Siemens ED21B030L - 30 A, 120 V, 1-Pole Bolt-On Circuit Breaker | AmpState

Siemens ED21B030L is a 30A, 120V, 1-pole bolt-on molded case circuit breaker engineered for dependable branch circuit protection in panelboards and load centers. Built to safeguard wiring and equipment, it delivers reliable protection where it matters most.

• Bolt-on mounting: securing the breaker with a rigid, vibration-resistant bus connection to maintain a solid electrical interface even in challenging environments.
• Thermal-magnetic trip unit: combines thermal and magnetic elements to provide stable, repeatable protection against overcurrent and short circuits, reducing nuisance trips and enhancing overall safety.
• OEM compatibility: designed to integrate smoothly with matching Siemens load centers and panelboards for a cohesive protection system.
• Versatile application: suited for residential, commercial, and light industrial circuits that require reliable single-pole protection.
• Clear specifications: 30A rating, 120V, single-pole, bolt-on mounting for straightforward installation in compatible panels.

What this means for you: a compact, robust solution that protects a single branch circuit from overloads and short circuits while maintaining consistent trip performance over time. The bolt-on design ensures a secure connection to the bus, helping resist loosening due to vibration or temperature changes common in busy electrical spaces.

Ideal use scenarios include new installations or panelboard upgrades in residential service panels, small commercial spaces, or light industrial applications where a precise 30A, 120V single-pole breaker is needed. Pair this unit with Siemens OEM load centers to preserve coordinated protection and predictable trip behavior across your electrical system.

Technical snapshot:

• Type: Thermal-magnetic molded case circuit breaker
• Amperage: 30 A
• Voltage: 120 V
• Poles: 1
• Mounting: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection
• Manufacturer: Siemens
• Part number: ED21B030L

Choosing the Siemens ED21B030L means investing in a proven, purpose-built breaker that aligns with your Siemens panelboard ecosystem, delivers dependable protection, and supports straightforward maintenance and replacement when needed.